Big Dragon 5-Position Stock Pipe.
Aluminum construction.
Fit for Western Arms/G&P WOC M4 series airsoft GBB rifle.
Suit for install 5 Position Sliding Buttstock.
Comes with a rubber cover to protect the screw pattern .
As always, upgrading Airsoft Gun require necessary skill & technique to dissemble the gun, consult expertise if needed.

Weight - 128g